21 / 02 / 2020

630 (17-4 PH) (UNS S17400)

630 (17-4 PH) (UNS S17400) is a martensitic precipitation-hardening stainless steel that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600 °F (316 °C), good toughness in both base metal and welds, and short time, low-temperature heat treatments that minimize warpage and scaling.